Hello, I have an Arctic Cat 300 and went to go start it and it made a weird noise. I found out that the crankcase is filled with gas. Everything I read says the needle and seat would cause that. After I replace those I understand I need to change the oil a couple times to flush out all the gas. This may be a stupid question but do I need the change the filter both times also? Also would trying to crank the engine while it is full of gas cause any damage? Thank you for any help.